Extension-table.



.N0 MODEL.

' EA'TENTE'D'MAY 5,1903..- E. BOEGMANN.

EXTENSION TABLE.

APPLIOATION FILED FEB. 14, 1903.

2 SHEETS-SHEET 1.

N5. 726,853. Y PATENTED MAY-5, 190s.

H. BORGMANN.

EXTBNSIUN TABLE.

. APPLIOATIONHLBD rms.14, 1903.

No MODEL. 2 slums-SHEET 2.

Patented May 5, 1903.

rrrcn.

HENRY BORGMANN, OF WASHINGTON, DISTRICT OF COLUMBIA.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters Patent No. 726,853, dated May 5, 1903. Application led February 14, 1903. Serial No.v 143,409. (No model.)

To @ZZ whom it may concern:

Be it known that I, HENRY BORGMANN, a citizen of the United States, residing atWashington, in the District of Columbia, have invented a new and useful Extension-Table, of which the following is a specification.

My invention relates to extension-tables, and has for its objects to produce a device of thischaracter which will be simple of construction, efticient in operation, and one in which the extension leaves or sections will lbe permanently carried by the table and are adapted to be folded into and out of the extension position and in which the primary sections may when the secondary extensionsections are moved into position be elevatedor depressed to bring them to a horizontal level therewith and maintained firmly in` either of such positions.

To these endsthe invention comprises the details of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure lis a longitudinal sectionalr elevation showing in its normal position a table constructed in accordance with my invention and having a single extension-leaf.`v Fig. 2 is a similar view illustrating the table in its extendedposition. Fig. 3 is a similar view of a table having two extension-leaves. Fig. 4 is a vertical transverse sectional detail, on an enlarged scale, on the line 4 4 of Fig. l. Fig. 5 is a detailed perspective view of the leaf-supporting member, showing in dotted lines the extended supporting-arm with which the same is in some instances provided.- Figs. 6, 7, S, and 9 are longitudinal sectional elevations illustrating the normal closed position and various extensions of a table having three extension-leaves.

Referring to the drawings, 1 indicates the top of the table, 2 the supporting-legs, and 3 the usual longitudinal side bars made up of a number of slidable sections.: The legs are preferably provided at their upper ends with spindles 4, `which enter socketsfrmed in the end blocks 5 and secured in place by transverse removable pins. The legs may, however, be secured to the table in any other suitable or des1red manner, inasmuch as this fea.- ture constitutes no part of the present invention.

In accordance-with my invention the tabletop comprises leaf-sections 7 and 7a and a secondary extension section or sections 8. These sections are' arranged in the form of table shown in Figs. land 2, with the primary section 7L secured to the framework of the table at the normal horizontal level, the secondary section 8 pivotally connected thereto-at the inner edge and adapted to fold over onto the section 7, as illustrated in Fig. 1,`orto a position in the same horizontal plane therewith, as shown in Fig. 2, and the main section 7 pivotally connected with the table by my improved pivoting member 9 andadapted to be moved vertically to a plane'horizontal with the fixed main section '7a or toa plane horizontal with the secondary extension-section S when the latter is folded to arposition over the section 7a.

My improved pivoting member comprises a casting 10, adapted for attachment to the longitudinal side bar of the table, a horizontal head-block 1l which is securedby screws or otherwise to the table-leaf, and an arm or link l2, which is pivotally connected with the casting and with the block 11. The casting 10 has a vertical web 13, suitably perforated and secured,preferably, by screws to the inner face of the longitudinal side bar 3,

a horizontal web 14, which extends beneath' the sliding portions of the side bars, and a vertical web 15, which lies at the inner face of the slidable sections of the side bars. The

. web has formed on its outer face a lug 16,

transversely beveled at its top to sustain thev leaf 12 in the position shown in Fig. 1 for supporting the main section in its elevated position. In practice I preferably provide four of these members for supporting the main section and arrange them in oppositelydisposed pairs near the outer longitudinal edge of the section and near the transverse ends of the same.

Supposing the parts to be inthe position illustrated in Fig. 1, with the secondary section folded over upon'the primary section 7i" and the primary section'7 supported by the members in its normal elevated position, with its top surface Iiush with the surface of the member 8, and that it is desired to extend the table, the side bars 3 are drawn out in the usual manner sufficiently for the section 8 to be received between the main sections, and the former is folded on its pivot to a position between them, as illustrated in Fig. 2, and the section 7 is moved on its supporting members to its depressed position, with its upper surface fiush with the upper surface of the remainder of the table, as illustrated in said figure. In this connection it is to be noted that the supporting members permit the elevation or depression of the leaf-section a distance equal to the thickness of the leaves.

In Fig. 3 is illustrated a table provided with two extension-sections pivoted one to the inner edge of each of the main sections and adapted to fold over upon their respective main sections or to a position between them in the manner and for the purpose as described in connection with the single extension-section illustrated in Fig. 1. When, however, the table is provided with two of these extension-sections, the supporting members 9, which are adjacent to the inner transverse edge of the main section 7, will each be provided with an extended supporting-arm 17, which will lie beneath and sustain the section 8 when folded down to its extension position. In this form of the device when the table is in its unextended position the section 8will be folded over upon section 7 and the latter will be in its depressed position, thus bringing the surfaces of sections S to the same horizontal plane, and the extendedsupporting-arms 17 will lie beneath primary sections 7. i

In Figs. 6 to 9 is illustrated a table having the two primary sections 7 and 7,both mounted on supporting members 9, and three extension-sections 8 and S". The extension-section S is pivoted to section 7, 8f to 7, and 8b to 8, and when the table is in its normal closed position S is folded over upon 7, 8 upon 7, and Sb backward upon 8a, and 7 is sustained in its elevated position by supporting members 9, while, on the other hand, 7a is in its depressed position, thus equalizing for the two leaf thicknesses on one side and the three leaf thicknesses on the other side and bringing the upper surfaces of the two halves of the table to a flush horizontal position, as shown in Fig. 6. When it is desired to extend the table the width of one leaf, 7 is depressed, carrying with it 8, 7a is elevated, and 8 S", folded one upon the other, are turned downward to the central position, as illustrated in Fig. 7. In Fig. 8 the table is shown as having two extensions brought into play. In this position of the parts sections 7 7 are both elevated, 8 is turned over to its extension position and is braced by an arm 18, pivoted to the underside of section 7 and adapted normally to lie transversely beneath the same, and 8 8b, folded one upon the other, are also turned' downward tothe extension position, as clearly shown. In Fig. 9 the table is shown as fully extended, in which position both of the primary sections 7 7 are depressed and rest upon the side bars of the table, which also support the various extension-leaves which are now all unfolded and extend in the same horizontal plane.

From the foregoing it will be seen that I produce a table of simple construction which may be readily extended, one in which the extension-sections will be permanently carried by the` table, and iu which the surface of the table will be preserved in an unbroken horizontal plane whether one or more of the sections be brought into play, and in attaining these ends it is to be understood that I do not limit myself to the precise details herein shown, inasmuch as minor changes may be made therein without departing from the spirit or score of my invention.

Having thus described my invention,what I claim isl. In a table, the combination with a pair of primary leaf-sections, of an extension-sec- 'tion pivoted to one of the primary sections and adapted to normally overlie the same `and to swing on its pivot to a position in a horizontal plane therewith, and means for supporting the other primary section independently of the remaining sections in an elevated position, said means being operable for depressing the section.

2. In a table, the combination With a pair of primary leaf-sections, of an extension-section adapted to normally overlie one of the primary sections, and means for supporting the other primary section in an elevated position, said means comprising a casting secured to the table-framework and provided with a lug, alink pivoted to the casting, and a shoe pivoted to the link and operatively engaging the leaf-section.

3. In a table, the combination with primary leaf-sections, of an extension-section adapted to fold over one of the primary sections, and means for sustaining the leaf-sections in an elevated position, said means comprising acasting secured to the framework of the table and provided with a lug, and a link pivoted to the casting and sustaining the leafsection, said link adapted, when in its leafsustaining position, to bear upon the lug.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

HENRY BORGMANN.

Witnesses:

J. Ross CcLHoUN, J. I-I. JocHUM, Jr.

IOO 

